CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash flows from operating activities
Net income (loss)	$ 499	$ 536
Depreciation and amortization	1,298	1,342
Accretion and amortization of loan and leasing fees	(404)	(363)
Undistributed earnings of nonconsolidated affiliates, net	(12)	(32)
Provision for loan losses	328	204
Deferred income taxes	100	8
Gain on termination of leased vehicles	(156)	(202)
Other operating activities	(115)	51
Changes in assets and liabilities:
Other assets	369	(218)
Other liabilities	(79)	130
Related party payables	50	144
Net cash provided by (used in) operating activities	1,877	1,601
Cash flows from investing activities
Purchases and funding of finance receivables	(9,668)	(8,392)
Principal collections and recoveries on finance receivables	9,097	7,650
Net change in floorplan and other short-duration receivables	2,545	(529)
Purchases of leased vehicles	(4,212)	(3,436)
Proceeds from termination of leased vehicles	2,529	3,085
Other investing activities	(4)	(4)
Net cash provided by (used in) investing activities	286	(1,626)
Cash flows from financing activities
Net change in debt (original maturities of three months or less)	188	(223)
Borrowings and issuances of secured debt	8,261	7,577
Payments on secured debt	(8,998)	(8,604)
Borrowings and issuances of unsecured debt	8,635	6,720
Payments on unsecured debt	(6,177)	(4,484)
Debt issuance costs	(55)	(44)
Dividends paid	(409)	(509)
Net cash provided by (used in) financing activities	1,444	432
Net increase (decrease) in cash, cash equivalents and restricted cash	3,608	407
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	24	(9)
Cash, cash equivalents and restricted cash at beginning of period	8,081	8,249
Cash, cash equivalents and restricted cash at end of period	11,714	8,646
Supplemental Cash Flow Elements [Abstract]
Cash and cash equivalents	8,444
Restricted cash included in other assets	3,270
Total	$ 11,714	$ 8,646